Results:  A new sesquiterpenoid, 4,11(12)-guiadiene-1-ol-3-one (4), together with eight specialized metabolites, betulinic acid (1), coniferyl aldehyde (2), oleanolic acid (3), daphnetoxin (5), apigenin (7), syringin (8), and genkwanol A (9) were isolated and reported for the first time from the shoots of the plant. Compound 4 as an undescribed compound was submitted for cytotoxicity assay and showed moderate activity with the IC50 value of 51.3  4.2 M against HeLa cancer cells. It showed selective inhibition of Interleukin-6 mediated signal transducer and activator of transcription 3 pathway (STAT-3/ IL-6), and Smad protein / transforming growth factor beta (TGF-) transcription factors when screened through an array of cancer signaling pathways. Molecular docking confirmed biological tests and showed the interaction with STAT3 and Smad proteins.

I had read that daphnes were difficult plants to keep alive, but yours wants to live, although horizontally and oddly! The real eye opener in this post, however, is the loss of that stunning twisted crabapple. How sad that it is gone. The pictures are beautiful and it must have been wonderful to sit under its branches.


Yvm Daphne After Shoots


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That's the most impressive Daphne I have ever seen ?or rather that's actually quite the saddest one. It looks like it has been grown in a tube. I marvel that they have advised you to pinch out the tip which in this case you will need to do in order to encourage the side shoots to develop. I would not wait till year 2 I would do this at the beginning of spring this year otherwise it will continue upwards with very little sideways. Its also quite a slow growing small bush so even more necessity in doing this.

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Peneus helped his daughter who was now firmly in the hands of Apollo. Daphne started transforming into a tree. Her hair became leaves, her arms branches, and her legs roots. Before Apollo could have a look at her face, she was gone. The only thing standing where Daphne stood was a beautiful laurel tree (literally a daphne tree in Greek).

And truly since then, the laurel became the sacred tree of Apollo. In the Delphi, the oracle would chew laurel leaves before receiving the divine wisdom that she translated into a prophecy. Also, the prize of the Pythian Games, the second most important Games in antiquity after the Olympics was a crown of laurel.

The best way to renovate a lilac without sacrificing years of flowering is to prune it over a three-year period. Starting next spring, right after the blooms fade, cut 1

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3 of the tallest branches right to the ground. The remaining older stems will bloom the following spring, while at the same time, new replacement shoots will begin growing from the base.

The following spring, prune out another third of the older stems and remove any new shoots that grow out of the base during summer, while continuing to shape the replacement shoots selected a year earlier.

Within a year or two after the last of the old stems have been pruned, the replacement shoots should begin blooming. From then on, every spring, as soon as the flowers fade, prune the tallest branches to a node 6 inches to a foot below the spent flower clusters. That will enable you to maintain your attractive lilac at about 8 feet tall without sacrificing flowering for years to come.

You can buy daphnes from garden centres and online suppliers, including RHS Plants. They are sold in 2 litre pots and upwards.


They are usually grafted, which makes them relatively expensive to buy, so it's worth taking care to select and plant them carefully.


To explore the various species and cultivars, go to RHS Find a Plant. Search for 'Daphne' to browse the photographs and plant descriptions, and find out where to buy them.


Check plant labels or descriptions carefully before you buy, to make sure the

Before planting, dig in plenty of organic matter, such as garden compost. This will help to hold moisture in the soil, which is especially important on free-draining, sandy soil, as daphnes won't tolerate drying out

For step-by-step planting instructions, see our guide to planting shrubs and our shrub-planting video.


Bear in mind that daphnes are highly toxic and the sap can irritate skin, so it's advisable to wear gloves when handling them.

Apart from the composition of macro- and microelements in a culture medium, the presence and concentration of the appropriate growth regulators are one of the important factors used to control growth and development of plants in tissue cultures. Auxins and cytokinins play a fundamental role in many aspects of plant development. Their interaction controls significant morphological processes, such as for example meristem appearance and development. During the stage of plant multiplication in vitro, the auxins are used in low concentrations, and accompanied by high concentrations of cytokinins which stimulate shoot proliferation (Su et al. 2011). Auxins have a broad spectrum of action in plants. Their most important effects in the in vitro cultures are enhancement of root and shoot production, stimulation of callus cell divisions, differentiation of conductive tissues, cell elongation, and inducing apical domination (Singh et al. 2016). This is confirmed by the results of research on the micropropagation of Althaea officinalis L. The optimum results of regeneration were observed on the MS medium with (7.5 M) BA and (0.5 M) NAA. On this combination, 95% explants regenerated, and on average, 26 shoots per explant was obtained (Naz et al. 2015).

The commonly used cytokinins in micropropagation are benzyladenine (BA) and meta-Topolin (mT). They are used during the stage of multiplication to obtain a maximum number of axillary shoots, i.e., new microcuttings. Contrary to auxins, they inhibit the root growth so they are not present in the culture media in the stage of rooting (Teixeira da Silva 2012). Recently, mT (meta-Topolin) has become the more common cytokinin in the in vitro plant production (Gentile et al. 2014; Koszeghi et al. 2014). Topolins are now alternative cytokinins for BA or TDZ (Thidiazuron) which have been most popular in micropropagation of many plants. Their application allows to avoid many problems such as poor regeneration, lower rooting ability resulting from a cytokinin application and dying of plants during acclimatization to the ex vitro conditions (Tarkowsk et al. 2003; Aremu et al. 2012; Amoo and Van Staden 2013; Amoo et al. 2015). Zeatin is another cytokinin, often used during culture initiation because of a positive impact on shoot regeneration during the multiplication stage (Reed and Abdelnour 1991; Wang et al. 2002). Other important growth regulators are gibberellins. The most active and the most frequently used is gibberellic acid (GA3) which stimulates internode elongation as well as differentiation of wood and cambium (Zhang et al. 2008).

The one-way analysis of variance showed the highly significant effect of medium composition on shoot regeneration (Table 4). In the case of the MS medium, this effect was seen when the naphthalene acetic acid (NAA) was used jointly with another growth regulator. During the first observation (after 3 weeks), the highest shoot number (6 per explant) was obtained on MS supplemented with NAA and BA. The shoot number doubled between the first and the second observation dates on following media: MS with NAA and BA, MS with NAA, and mT and WPM with NAA and BA.

The positive effect on shoot length was evident in MS supplemented with NAA and GA3 where shoots attained 1 cm, being 35% longer than on MS 0. Shoot length increased during culture in all the treatments except those without growth regulators. On the second date, the longest shoots were on WPM with NAA and GA3, being three times longer than on WPM 0 (Table 4).

In treatments where MS was used together with growth regulators, the shoots were longer than in the control treatment MS 0. Both, after 3 and 6 weeks, the longest shoots were on MS with GA3 and mT, being 0.3 cm and nearly 1.0 cm longer, respectively, than on MS 0. On WPM, growth regulators increased shoot length relative to WPM 0 in all the treatments, except when gibberellin was used alone. The longest shoots were on WPM with GA3 and NAA (Fig. 1d), where they attained 1.08 cm on the average. The increase in shoot length relative to the control medium without growth regulators occurred in all the treatments except that with GA3 and BA.

February daphne (Daphne mezereum L.) is an ornamental shrub legally protected in Poland in its natural habitats. Its cuttings root difficultly and shoots regenerate poorly when cut or damaged and plants lack an ability to branch, therefore, a suitable method to propagate the species needs to be developed. One of the solutions may be tissue cultures. The experiments described here concentrated on one of the micropropagation stages, i.e., the multiplication process. Three parameters showing the efficiency of propagation have been evaluated: the percentage of regenerating explants, the average number of shoots per explant and the mean shoot length.

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